Commits on Nov 3, 2022

1. Expose zfs_vdev_open_timeout_ms as a tunable …

   Some of our customers have been occasionally hitting zfs import failures
   in Linux because udevd doesn't create the by-id symbolic links in time
   for zpool import to use them. The main issue is that the
   systemd-udev-settle.service that zfs-import-cache.service and other
   services depend on is racy. There is also an openzfs issue filed (see
   openzfs#10891) outlining the problem and
   potential solutions.
   
   With the proper solutions being significant in terms of complexity and
   the priority of the issue being low for the time being, this patch
   exposes `zfs_vdev_open_timeout_ms` as a tunable so people that are
   experiencing this issue often can increase it as a workaround.
   
   Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com>

   

   sdimitro committed Nov 3, 2022
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